Abstract
Erratum
It has been brought to the publisher's attention that there was an error in the author name “Eyal Itshayek” in the above article in the Global Spine Journal, Volume 5, Number 3, 2015 (DOI: 10.1055/s-0035-1552987). The author's last name was wrong and was incorrectly published as “Eyal Itzchayek.” The correct author listing appears above.